<?php
/**
 * crcl/base
 *
 * Copyright 2013 CRCL - André Sabosch - info@crcl.de
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

namespace crcl\base\structure\field;

interface IBoolean
{
}

class ContainerBoolean extends Base implements IBoolean
{
  protected function check($value)
  {
    if (!\is_bool($value))
    {
      switch ($value)
      {
        case 'true':
        case '1':
        case 'yes':
        case 'ja':
        case 'on':
          break;
        case 'false':
        case '0':
        case 'no':
        case 'nein':
        case 'off':
          break;
        default:
          throw new Exception('Invalid boolean.', Exception::ERROR_BOOLEAN_INVALIDBOOLEAN);
      }
    }
  }
}